Overview

OPTIMIZATION AND SYSTEMS THEORY

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Publications in DiVA 2020
(fractional counts)

6.4

WoS coverage 2014 - 2020
(peer reviewed)

77.8 %

Scopus coverage 2014 - 2020
(peer reviewed)

97.3 %

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Notes more…

Indicators in the Citation impact, Journal impact and Co‑publishing tabs are based on Web of Science publications only. Corresponding Scopus indicators can be found under the Scopus tab.

Overall Web of Science coverage for peer reviewed publications in this unit is good, 77.8%.

Note that the coverage numbers for Web of Science and Scopus apply to publications in the KTH bibliometric database Bibmet. If a WoS-id or Scoupus-id from DiVA can not be matched in Bibmet, it does not count as covered.

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Background

The bibliometric indicators referred are based on publications registered in DiVA. Only publications from currently employed researchers at KTH are included. The rolling nature of this report means that it provides more of a current overview and less of a historic stable trend, since it excludes publications written by researchers that are no longer affiliated to KTH, but have been at some point in time.

Indicators in the Citation impact, Journal impact and Co‑publishing tabs are based on Web of Science publications only. Corresponding Scopus indicators can be found under the Scopus tab.

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Researchers at the unit

Publication data is available only after login.

Publications in DiVA

OPTIMIZATION AND SYSTEMS THEORY

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Fractional count

Publication volume, fractionalized

Publication volume, fractionalized

DiVA publication type 2014 2015 2016 2017 2018 2019 2020 Publications WoS coverage Scopus coverage
Article, peer review 3.0 1.9 4.3 4.9 4.8 2.2 4.1 25.2 81.0% 1.0
Article, other NA NA NA NA 0.3 NA 0.3 0.7 50.0% 0.5
Conference paper, peer review 6.1 5.0 2.3 4.1 3.3 3.9 2.0 26.7 74.8% 1.0
Chapter in book NA NA NA NA NA 0.2 NA 0.2 0.0% 0.0
Licentiate thesis NA NA NA NA NA 1.0 NA 1.0 0.0% 0.0

Full count

Publication volume, full count

Publication volume, full count

DiVA publication type 2014 2015 2016 2017 2018 2019 2020 Publications WoS coverage Scopus coverage
Article, peer review 10 6 10 14 14 7 11 72 81.9% 1
Article, other NA NA NA NA 1 NA 1 2 50.0% 0
Conference paper, peer review 15 12 6 10 7 9 4 63 77.8% 1
Chapter in book NA NA NA NA NA 1 NA 1 0.0% 0
Licentiate thesis NA NA NA NA NA 1 NA 1 0.0% 0

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Publication volume

Publication volume

Web of Science coverage by publication type

Web of Science coverage by publication type

Citation impact

OPTIMIZATION AND SYSTEMS THEORY

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Citations 3-year window, fractional counts

Citations 3-year window, fractional counts

Publication Year Publications Total Citations Average Citations Uncited publications Share uncited
2014 6.2 12.8 2.1 2.9 47.2%
2015 5.3 9.1 1.7 2.5 47.3%
2016 6.4 9.2 1.4 3.0 47.4%
2017 9.0 17.7 2.0 3.9 42.9%
2018 6.8 9.4 1.4 3.2 47.9%
Total 33.7 58.2 1.7 15.6 46.2%

Field normalized citations, fractionalized (3-year moving average)

Field normalized citations, fractionalized (3-year moving average)

Publication years Publications Average Cf Top 10% publications Share Top 10%
2014-2016 8.4 0.87 0.9 11.3%
2015-2017 10.8 0.64 0.7 6.0%
2016-2018 12.9 0.56 0.6 4.5%
2017-2019 9.3 0.54 0.3 3.2%
Total 17.7 0.69 1.2 7.0%

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Notes more…

This table is based on Web of Science publication types Article, Proceedings paper, Review, Letter and Editorial.
Rows are based on at least 15 (full counted) publications with moderate Web of Science coverage (at least 67.9%).
(DiVA publication types Article, peer review and Conference paper, peer review)
Indicators based on < 50 publications are considered unreliable

Notes more…

This table is based on Web of Science publication types Article and Review.
Rows are based on at least 23 (full counted) publications with good Web of Science coverage (at least 78.6%).
(DiVA publication type Article, peer review)
Indicators based on < 50 publications are considered unreliable

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Average field normalized citations (Cf)

Share of publications among Top 10% cited

Journal impact

OPTIMIZATION AND SYSTEMS THEORY

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Journal impact, fractionalized (3-year moving average)

Journal impact, fractionalized (3-year moving average)

Publication years Publications Average Journal Cf Publications in Top 20% journals Share Top 20% journals
2014-2016 8.4 1.23 2.9 34.2%
2015-2017 10.8 1.35 4.6 42.3%
2016-2018 12.9 1.43 6.3 48.7%
2017-2019 9.3 1.47 4.7 50.9%
2018-2020 7.1 1.46 3.8 53.3%
Total 20.4 1.36 9.0 44.1%

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Notes more…

This table is based on Web of Science publication types Article and Review.
Rows are based on at least 22 (full counted) publications with moderate Web of Science coverage (at least 64.3%).
(DiVA publication type Article, peer review)
Indicators based on < 50 publications are considered unreliable

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Field normalized journal impact (JCf)

Share of publications in Top 20% journals

Co‑publishing

OPTIMIZATION AND SYSTEMS THEORY

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Summary

International and Swedish non-university co‑publications (full counts)

International and Swedish non-university co‑publications (full counts)

Publication years Publications Swedish non-university co-publications Share Swedish non-university International co-publications Share international
2014-2016 23 2 8.7% 15 65.2%
2015-2017 29 3 10.3% 19 65.5%
2016-2018 35 3 8.6% 23 65.7%
2017-2019 28 3 10.7% 18 64.3%
2018-2020 22 2 9.1% 13 59.1%
Total 59 6 10.2% 38 64.4%

Notes more…

This table is based on Web of Science publication types Article and Review.
Rows are based on at least 22 (full counted) publications with moderate Web of Science coverage (at least 68.8%).
(DiVA publication type Article, peer review)
Indicators based on < 50 publications are considered unreliable

International and Swedish non-university co‑publication

Countries and organizations

Co‑publication countries

Co‑publication countries

Country Publications 1-10 auth 11-50 auth 51-200 auth Over 200 auth Publications (frac)
China 52 52 0 0 0 19.1
United States 11 11 0 0 0 3.9
Luxembourg 6 6 0 0 0 1.8
Italy 3 3 0 0 0 1.0
Australia 3 3 0 0 0 0.7
New Zealand 2 2 0 0 0 0.7
Greece 2 2 0 0 0 0.4
Japan 1 1 0 0 0 0.3
Spain 1 1 0 0 0 0.2

Co‑publication organizations

Co‑publication countries

Organization Organization type Country Publications 1-10 auth 11-50 auth 51-200 auth Over 200 auth Publications (frac)
Shanghai Jiao Tong University University China 18 18 0 0 0 8.8
Chinese Academy of Sciences Institute China 16 16 0 0 0 4.0
Harbin Institute of Technology University China 12 12 0 0 0 3.5
RaySearch Laboratories Company Sweden 7 7 0 0 0 2.5
Lund University University Sweden 6 6 0 0 0 2.2
University of Luxembourg University Luxembourg 6 6 0 0 0 1.8
Nanjing University of Information Science and Technology University China 3 3 0 0 0 1.3
Ministry of Education Other Public China 4 4 0 0 0 1.1
University of Florida University United States 4 4 0 0 0 1.0
Bitynamics AB Company Sweden 2 2 0 0 0 1.0
University of California, Irvine University United States 2 2 0 0 0 1.0
University of Electronic Science and Technology of China University China 3 3 0 0 0 1.0
University of Padova University Italy 3 3 0 0 0 1.0
Hebei University of Technology (HEBUT) University China 4 4 0 0 0 1.0
Wuhan University of Technology University China 3 3 0 0 0 0.8
Qingdao University University China 2 2 0 0 0 0.7
South China University of Technology University China 1 1 0 0 0 0.7
Uppsala University University Sweden 2 2 0 0 0 0.7
Victoria University Wellington University New Zealand 2 2 0 0 0 0.7
Georgia Institute of Technology University United States 1 1 0 0 0 0.5
Harvard University University United States 1 1 0 0 0 0.5
Linköping University University Sweden 2 2 0 0 0 0.5
Teleopti Tem AB Company Sweden 1 1 0 0 0 0.5
University of Chinese Academy of Sciences University China 2 2 0 0 0 0.5
University of Peloponnese University Greece 2 2 0 0 0 0.4
BEIJING JIAOTONG UNIVERSITY University China 2 2 0 0 0 0.4
Ericsson Company Sweden 1 1 0 0 0 0.3
Sophia University University Japan 1 1 0 0 0 0.3
University of California, San Diego University United States 1 1 0 0 0 0.3
Australian National University University Australia 1 1 0 0 0 0.2
Beijing University of Posts and Telecommunications University China 1 1 0 0 0 0.2
Chalmers University of Technology University Sweden 1 1 0 0 0 0.2
Massachusetts Institute of Technology University United States 1 1 0 0 0 0.2
University of Sydney University Australia 1 1 0 0 0 0.2
Washington University in St. Louis University United States 1 1 0 0 0 0.2
Elekta AB Company Sweden 1 1 0 0 0 0.2
University of New South Wales University Australia 1 1 0 0 0 0.2
University of Zaragoza University Spain 1 1 0 0 0 0.2
East China University of Science and Technology University China 1 1 0 0 0 0.1
FUDAN UNIVERSITY University China 1 1 0 0 0 0.1

Open Access

OPTIMIZATION AND SYSTEMS THEORY

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Open Access publications, full counts

Open Access publications, full counts

Publication Year Publications Open Access publications OA gold OA hybrid OA green OA bronze Not OA Share OA
2014 21 2 0 0 2 0 19 9.5%
2015 18 5 0 0 5 0 13 27.8%
2016 16 5 0 0 5 0 11 31.2%
2017 24 12 0 2 10 0 12 50.0%
2018 21 14 0 4 10 0 7 66.7%
2019 16 8 1 3 4 0 8 50.0%
2020 16 8 0 1 6 1 8 50.0%
Total 132 54 1 10 42 1 78 40.9%

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Notes more…

The Open Access type of the publications was fetched from the Unpaywall REST API. The method to determine the OA type is presented here.

In summary, the different OA types can be described as follows:

  • Gold: The full text has been found on a publisher website, in a journal that is fully OA.

  • Hybrid: The full text has been found on a publisher website, in a journal that is not fully OA.

  • Green: The full text has been found in an institutional repository, such as DiVA.

  • Bronze: The full text has been found on a publisher website but no OA license could be identified.

N.B.: This table is based on peer-reviewed publications for which Unpaywall could determine the OA type (necessary condition: have a DOI number). Unpaywall’s method is empirical and does not strictly equate to copyright license. As a consequence, the OA status of a given publication may vary with time — for example turning from “Not OA” to “Green” when a full text is added to DiVA.

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Overview of Open Access publications - piechart

Stacked area chart for publications

Scopus

OPTIMIZATION AND SYSTEMS THEORY

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Citation Impact

Column

Citations, open window
Citations, open window
Publication Year Publications Total Citations Average Citations Uncited publications Share uncited
2014 8.3 62.6 7.5 3.2 38.9%
2015 6.5 38.2 5.9 0.8 12.8%
2016 6.6 41.1 6.2 0.9 13.8%
2017 8.7 36.1 4.2 1.2 13.8%
2018 8.1 18.1 2.2 3.0 37.0%
2019 6.0 4.8 0.8 3.1 50.6%
2020 6.4 8.2 1.3 4.0 63.0%
Total 50.8 209.3 4.1 16.3 32.1%
Notes more…

This table is based on Scopus publication types Article, Conference Paper, Review, Letter and Editorial.
Rows are based on at least 15 (full counted) publications with good Scopus coverage (at least 91.8%).
(DiVA publication types Article, peer review and Conference paper, peer review)
Indicators based on < 50 publications are considered unreliable
Average field weighted citation impact (FWCI)
Field weighted citation impact (FWCI)
Field weighted citation impact (FWCI)
Publication years Publications Average FWCI Top 10% publications Share Top 10%
2014-2016 18.8 1.00 1.8 9.6%
2015-2017 20.8 0.79 1.7 8.2%
2016-2018 19.3 0.72 1.2 6.0%
2017-2019 17.6 0.62 0.5 2.8%
Total 36.4 0.82 2.3 6.3%
Notes more…

This table is based on Scopus publication types Article, Review and Conference Paper.
Rows are based on at least 56 (full counted) publications with good Web of Science coverage (at least 95.2%).
(DiVA publication type Article, peer review)

Share of publications among Top 10% cited

Journal Impact

Journal impact, fractionalized (3-year moving average)
Journal impact, fractionalized (3-year moving average)
Publication years Publications Average SNIP Publications in Top 20% journals Share Top 20% journals
2014-2016 14.0 1.32 6.3 45.4%
2015-2017 13.3 1.62 7.8 58.8%
2016-2018 16.3 1.77 10.5 64.5%
2017-2019 16.2 1.61 10.1 62.4%
2018-2020 16.7 1.57 9.7 58.2%
Total 35.5 1.52 19.8 55.8%
Notes more…

This table is based on Scopus publication types Article, Review and Conference Paper.
Rows are based on at least 52 (full counted) publications with good Web of Science coverage (at least 95.2%).
(DiVA publication type Article, peer review)
Field normalized journal impact (SNIP)

Share of publications in Top 20% journals

Co‑publishing

International and corporate co‑publications (full counts)
International and corporate co‑publications (full counts)
Publication years Publications Corporate co-publications Share corporate International co-publications Share international
2014-2016 56 1 1.8% 38 67.9%
2015-2017 56 1 1.8% 35 62.5%
2016-2018 60 0 0.0% 38 63.3%
2017-2019 60 0 0.0% 33 55.0%
2018-2020 52 1 1.9% 26 50.0%
Total 131 2 1.5% 79 60.3%
Notes more…

This table is based on Scopus publication types Article, Review and Conference Paper.
Rows are based on at least 52 (full counted) publications with good Web of Science coverage (at least 94.9%).
(DiVA publication type Article, peer review)

International and corporate co‑publication

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